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Excitation-emission fluorescence spectroscopic analysis in the presence of interferents. A laboratory experiment integrating analytical chemistry and advanced data processing
(The Chemical Educator, 2013-05)
In the present report an advanced experiment is described to introduce chemistry students to the direct chemometric resolution of binary mixtures of two pharmaceuticals (oxatomide and phenylephrine) by measuring ...
Costunolide and Flavonols from Gochnatia Foliosa Var. Fascicularis
(1984)
As part of a systematic chemical investigation of Chilean Compositae (1-3), we examined the secondar chemistry of a member of the genus Gochnatia (tribe Mutisieae, subtribe Gochnatiinae): Gochnatia foliosa var. fscicularia ...
USING SPREADSHEET SOFTWARE AS A TEACHING TOOL IN QUALITATIVE ANALYTICAL CHEMISTRY
(Soc Brasileira Quimica, 2016-04-01)
The use of spreadsheet softwares is not widespread in Chemical Education in Brazil as a computational education tool. By its turn the Qualitative Analytical Chemistry is considered a discipline with classical and non-flexible ...
Rapid Methods in Analytical Chemistry
(2012)
This article presents the most recent research in analytical chemistry concerning the development of rapid methodologies covering the period from 2009 up until today. In this context, different useful analytical methods ...
Schizanthine X, A new alkaloid from schizanthus grahamii
(1991)
A new dimeric alkaloid 1 has been isolated from Schizanthusgrahamiiand its structure determined by spectroscopic methods. © 1991, American Chemical Society. All rights reserved.
Tropane alkaloids from Schizanthus pinnatus
(1988)
From Schizanthus pinnatus Ruiz et Pav. we have isolated seven new tropan-3α,6β-diol diesters, schizanthines F (1), G (2), H (3), I (4), K. (8), L (9), and M (10), together with tropine, (-) -6β-angeloyloxytropan-3α-ol (5), ...
Silybin dihemisuccinate protects against glutathione depletion and lipid peroxidation induced by acetaminophen on rat liver
(1989)
Acetaminophen hepatotoxicity is characterized by glutathione depletion, cellular necrosis, and, in some instances, by the induction of lipid peroxidation. Silybin dihemisuccinate, a soluble form of the flavonoid silymarin, ...